BARRY, M. Review of Cornelius Cardew: Four Principles on Ireland and Other Pieces. Contact: A Journal for Contemporary Music (1971-1990), [S. l.], n. 13, 1976. DOI: 10.25602/GOLD.cj.v0i13.1003. Disponível em: https://journals.gold.ac.uk/index.php/contactjournal/article/view/contactjournal13_p38-39. Acesso em: 5 mar. 2024.